If this is the barrier to entry for you, I would strongly consider another hobby. Do the math on a week of practice for many "competitors", people with no chance of winning a major match but who aspire to improve for their own reasons (like me).
reloading/ammo costs for 500+ rounds/week
local match fees.
gas to drive the 80 mile round trip to the range 2x per week
Then add in Majors, hotel, airfare, food, etc.. And a backup gun(s). And a backup optic or three
And you are worried about basepads which will likely not need replacing for years? Time to take a hard look at your finances and decide if USPSA makes sense for you